CN110798049A - Power converter arrangement and method for operating such a power converter arrangement - Google Patents

Power converter arrangement and method for operating such a power converter arrangement Download PDF

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Publication number
CN110798049A
CN110798049A CN201910628252.1A CN201910628252A CN110798049A CN 110798049 A CN110798049 A CN 110798049A CN 201910628252 A CN201910628252 A CN 201910628252A CN 110798049 A CN110798049 A CN 110798049A
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China
Prior art keywords
power converter
parameter
converter arrangement
parameters
control device
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Pending
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CN201910628252.1A
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Chinese (zh)
Inventor
马可·洪斯贝格
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Semikron Elektronik GmbH and Co KG
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Semikron Elektronik GmbH and Co KG
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Publication of CN110798049A publication Critical patent/CN110798049A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/32—Means for protecting converters other than automatic disconnection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/493—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode the static converters being arranged for operation in parallel
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0003—Details of control, feedback or regulation circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/32—Means for protecting converters other than automatic disconnection
    • H02M1/327—Means for protecting converters other than automatic disconnection against abnormal temperatures

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)

Abstract

The present invention provides a power converter arrangement and a method of operating such a power converter arrangement, the arrangement comprising a plurality of power converter modules, each module having an associated driver device; and a superordinate control device which actuates the power converter arrangement, wherein the respective driver device has a first parameter memory and a transmission device, wherein a dynamically unchangeable first parameter of the associated power converter module is stored in the first memory, wherein the control device has a receiving device, a processing device and a second parameter memory, wherein the second parameter (at least some of the second parameters being identical to the first parameter) is stored in the second memory, and the processing device is designed to compare the first and second parameters, or wherein the processing device is designed to store the first parameter received in the second memory as the second parameter, wherein the respective transmission device is connected to the receiving device by means of a connection device such that the first parameter can be transmitted from the respective driver device to the control device.

Description

Power converter arrangement and method for operating such a power converter arrangement
Technical Field
A power converter arrangement is described that includes a plurality of power converter modules, each having an associated driver device and having a superordinate control device that energizes the power converter arrangement. The invention further describes a method for operating such a power converter arrangement.
Background
In the generally known prior art, dynamically variable parameters are transmitted from the driver device to the control device during regular operation of the power converter arrangement, and the operation is adjusted at least partly in accordance with these parameters. Such parameters include, for example, the temperature of the power converter module or the power semiconductor components contained therein, or additionally, the power currently output by the power converter module.
Especially in the case of high power to very high power converter arrangements, it is conventional in the art to construct each individual phase (phases) by connecting a plurality of identical power converter modules in parallel. In such a case, it is often necessary to select the power converter modules so that they are compatible with each other. This is necessary, for example, to distribute the current evenly to the individual power converter modules. In the case of a replacement of one of the parallel-connected power converter modules, in particular during maintenance, it is particularly important to reuse the "right" power converter module.
With the mentioned circumstances in mind, the present invention is based on the object of providing a power converter arrangement and an associated method for operating the same, in which the disadvantages are alleviated or eliminated.
Disclosure of Invention
This object is achieved according to the invention by a power converter arrangement comprising a plurality of power converter modules, each having an associated driver device and a superordinate control device, which drives the power converter arrangement, wherein the respective driver device has a first parameter memory and a transmission device, wherein a dynamically unchangeable first parameter of the associated power converter module is stored in the first parameter memory, wherein the control device has a receiving device, a processing device and a second parameter memory, wherein the second parameter is stored in the second parameter memory and the processing device is designed to compare the first parameter and the second parameter, or wherein the processing device is designed to store the first parameter received in the second parameter memory as the second parameter, wherein the respective transmitting device is connected to the receiving device by means of the connecting device such that the first parameter can be transmitted from the respective driver device to the control device. It goes without saying that, and preferably also, this is common to the described functions of the processing means.
Dynamically unchangeable parameters are intended to be understood to mean parameters that are no longer variable during normal operation of the power converter (that is, not during its production or during subsequent testing or debugging). Such parameters may be identification parameters or excitation parameters of a specific power converter module, specific parameters such as switching parameters, which are determined, for example, in a test operation.
The respective transmission device, the connection device and also the receiving device can be additionally designed to transmit a dynamically variable further parameter (such as, for example, the current temperature of the power semiconductor component of the power converter module) from the respective driver device to the control device. Such transmission may be performed, for example, using a multiplexing operation.
It is particularly preferred that the respective driver device and the associated power converter module form a structural unit, wherein the driver device is arranged, for example, in a housing of the power converter module.
A dedicated processing device may be associated with each receiving device in the control device, or alternatively a common processing device may be associated with a plurality of receiving devices.
A dedicated second parameter memory may be associated with each processing device in the control device, or a common second parameter memory may be associated with a plurality of processing devices in the control device.
According to the invention, the aforementioned object is further achieved by a method for operating a power converter arrangement of the aforementioned type, wherein, prior to regular operation of the power converter arrangement, first parameters are stored in a respective first parameter memory, and for initiating the regular operation, the first parameters are transmitted from the respective driver device to the control device, and wherein the mode of operation of the power converter arrangement depends on these first parameters.
The term "operating mode" is understood to mean, in particular, not operating, in addition to the various types of operation of the power converter as is customary in the art. Conventional operation, as is customary in the art, is explicitly prevented during periods of non-operation, for example if an unsuitable power converter module has been installed in the event of a repair.
It is advantageous here if, when one of the first parameters is an identification parameter, and before starting the normal operation of the power converter arrangement, the respective identification parameter of each driver device is compared in the processing device with the applicable identification parameter stored in the second parameter memory, and the operation of the power converter arrangement is started only if all the respective identification parameters correspond to the applicable identification parameters.
It is further advantageous when one of the first parameters is an identification parameter, and during normal operation of the power converter arrangement, the respective identification parameter of each driver device is compared in the processing device with the applicable identification parameter stored in the second parameter memory at regular intervals, in particular periodically, and operation of the power converter arrangement is continued only if all the respective identification parameters correspond to the applicable identification parameters.
It is also preferred that when one of the first parameters is an excitation parameter, and prior to initiating normal operation of the power converter arrangement, the respective excitation parameter of each driver device is stored as a second parameter in a second parameter memory, and normal operation of the power converter arrangement is initiated based on the respective second parameter.
Unless expressly excluded or excluded per se or inconsistent with the present inventive concept, features or groups of features, each referred to in the singular, such as receiving means, processing means or second parameter memory, may of course be present multiple times in a component or a power semiconductor device according to the present invention.
It goes without saying that the various modifications of the invention, whether they are referred to in the power converter arrangement or in the method, can be implemented individually or in any desired combination in order to achieve the improvement. In particular, the features mentioned and explained above and below can be used not only in the indicated combinations but also in other combinations or alone without departing from the scope of the invention.
Drawings
Further explanations, advantageous details and features of the invention will be apparent from the following description of exemplary embodiments of the invention schematically illustrated in fig. 1 to 4 or from the corresponding parts thereof.
Fig. 1 shows a block diagram of a modification of the power converter arrangement according to the invention.
Fig. 2 shows a schematic three-dimensional view of a power converter arrangement according to the invention.
Fig. 3 shows a three-dimensional view of a power converter arrangement according to the invention.
Fig. 4 shows an assembly of a power converter module and a driver device comprising a power converter arrangement according to the invention.
Detailed Description
Fig. 1 shows a block diagram of a modification of a power converter arrangement 1 according to the invention. The figure shows a plurality of structural units 10, each formed by a power converter module 2 (here, by way of example only, a single-phase inverter module) and a driver device 3 connected to the power converter module for controlling it.
In respect of what is relevant to the invention, the driver device 3 has a first memory as the first parameter memory 30, which is designed in a manner customary in the art. A dynamically unchangeable first parameter of the associated power converter module 2 is stored in this parameter memory 30. Such first parameters (alone or in any desired combination) may be one or more identification parameters or one or more excitation parameters. The identification parameter is used in particular to identify the power converter module 2 or the component 10 to the superordinate control device 4 suitable for use. Furthermore, the identification parameters can also be used to identify counterfeiting. The excitation parameters are used for correctly exciting the power converter module 2, in particular in the case of a plurality of assemblies 10 (that is to say, a plurality of power converter modules 2 together form a power converter of one phase of a multi-phase system).
All these dynamically unchangeable first parameters share their common characteristics which are already stored in the first parameter memory 30 before the start of the normal operation of the power converter arrangement 1 and which do not change during the normal operation of the power converter arrangement 1. These first parameters are preferably stored in the first parameter memory 30 during production or during a test operation of the component 10 immediately after production. The first parameters may also be stored in the first parameter memory 30 during commissioning of the power converter arrangement 1, but never during normal operation.
Furthermore, the driver device 3 has a transmission device 32 which is designed and arranged for outputting the first parameters from the first parameter memory 30.
The power converter arrangement 1 further has a superordinate control device 4, which here (without limiting the general features) has a second memory as a second parameter memory 40, which is designed in a manner customary in the art. Furthermore, the control means 4 associated with each component (again without limiting the general nature) have in each case a receiving means 42, where this receiving means 42 is associated with a dedicated processing means 44. The receiving device 42 is in each case connected to the transmitting device 32 of the associated module 10, more precisely to the driver device 3 of the module, by means of the connecting device 5.
In principle, the combination comprising the transmitting means 32, the connecting means 5 and the receiving means 42 can be designed in a manner customary in the art. In particular, these components may already be present in the power converter arrangement 1 according to the prior art, for example for transmitting parameters that are dynamically variable during normal operation, such as the temperature of the power converter module 2. According to a variant of the invention, these components are then also used for applying the method according to the invention.
Within the scope of the method according to the invention, the dynamically unchangeable first parameters are stored in the respective first parameter memory 30 before the normal operation of the power converter device 1 is started or (for example after maintenance) restarted. In particular, immediately before the desired start of the normal operation, the first parameters stored in each first parameter memory 30 are read out of said first parameter memory and these first parameters are transmitted to the control device 4 via the connection device 5 by means of the transmission device 32 of the respective driver device 3.
The first parameter is received in the receiving means 42 and is processed in the respective processing means 44 or, alternatively, in a processing means 44 common to all receiving means 42, and the operating mode is determined therefrom or at least jointly.
In a first modification, the identification parameters are stored in a first parameter memory 30. The processing means 44 then compares these corresponding identification parameters with the allowed applicable identification parameters stored in the second parameter memory 40. In a particularly preferred variant, these applicable identification parameters are downloaded from a server (for example, the server of the manufacturer of the component or of the component part of the component) into the second parameter memory 40 by means of a communication link, to be processed dynamically as required (that is to say before the comparison).
If this comparison has a positive result, the power converter arrangement 1 then starts normal operation. If in the comparison it is found that at least one identification parameter in the first parameter memory 30 is not applicable, an emergency operation is initiated, in which for example a component 10 without an applicable identification parameter is not included in the operation, or no operation is initiated.
In particular, in addition, but as an alternative to the first modified function just mentioned, it is also possible for the excitation parameters to be stored in the first parameter memory 30 in the context of the second function. These respective excitation parameters are individual parameters of the respective assembly 10 and in this case in particular parameters of the respective power converter module 2. Such parameters may be, for example, individual maximum allowable state values (such as temperature or current load) and may also be, for example, switching parameters (such as individual delay times for switching in groups of assemblies 10).
The processing means 44 then stores these first parameters as second parameters (in unaltered or modified form) in the second parameter memory 40. Then, within the scope of normal operation, this second parameter memory 40 and the second parameters are accessed and the respective component 10 is therefore excited on the basis of these second parameters.
The first parameter is also advantageously checked in a periodic manner by the control device 4 or sent independently by the respective driver device 3 during normal operation. Subsequently, during normal operation, the corresponding function may be performed, and the operation mode may be maintained or changed based on the result.
Fig. 2 shows a schematic three-dimensional view of a power converter arrangement 1 according to the invention. The figure shows six assemblies 10, wherein in each case two assemblies 10 form one phase of a three-phase inverter. The respective assemblies 10 each comprise a power inverter module with a water cooling arrangement and an integrated driver arrangement.
The assembly 10 forms a stack with a cooling water flow inlet 100 and also with a cooling water flow outlet 102.
The respective driver device has an interface 50 and, by means of said interface, is connected to the control device 4, the interface 50 also comprising the transmission device 5. The printed circuit board of the control device 4 is arranged laterally next to the stack on one of the narrow sides of the stack and is protected from environmental influences by means of the cover 402 and the sealing device 400.
Fig. 3 shows a three-dimensional view of a power converter arrangement 1 according to the invention, which in principle has the same construction as the construction according to fig. 2. Here, however, three assemblies 10 form one phase in each case.
Fig. 4 shows a cross-sectional view of an assembly 10 according to fig. 3, which assembly 10 comprises a power converter module 2 and a driver device 3 of a power converter arrangement according to the invention. The figure shows a water cooling 22 of a power converter module, a power electronics circuit 20, and a driver device 3, the power electronics circuit 20 being arranged directly above the water cooling and being thermally conductively connected to the water cooling, and the driver device being located at a distance above the power electronics circuit. Furthermore, the figure further shows the housing 24 of the power converter module 2, and also shows its load connection elements 200 (see also fig. 2 and 3).

Claims (9)

1. A power converter arrangement (1), the power converter arrangement (1) comprising a plurality of power converter modules (2), each power converter module (2) having an associated driver device (3) and a superior control device (4), the superior control device (4) energizing the power converter arrangement (1),
wherein the respective driver device (3) has a first parameter memory (30) and a transmitting device (32), wherein a dynamically unchangeable first parameter of the associated power converter module (2) is stored in the first parameter memory (30),
wherein the control device (4) has a receiving device (42), a processing device (44) and a second parameter memory (40), wherein a second parameter is stored in the second parameter memory (40) and the processing device (44) is designed to compare the first parameter and the second parameter, or wherein the processing device (44) is designed to store a first parameter received in the second parameter memory (40) as a second parameter,
wherein the respective transmitting device (32) is connected to the receiving device (42) by means of a connecting device (5) such that a first parameter can be transmitted from the respective driver device (3) to the control device (4).
2. The power converter arrangement according to claim 1, wherein the respective transmitting means (32), the connecting means (5) and also the receiving means (42) are additionally designed to transmit a dynamically variable further parameter from the respective driver means (3) to the control means (4).
3. The power converter arrangement according to any of claims 1 and 2, wherein the respective driver device (3) and the associated power converter module (2) form one structural unit (10).
4. The power converter arrangement according to one of claims 1 and 2, wherein a dedicated processing device (44) is associated with each receiving device (42) in the control device (4) or a common processing device (44) is associated with a plurality of receiving devices (42) in the control device (4).
5. The power converter arrangement according to one of claims 1 and 2, wherein a dedicated second parameter memory (40) is associated with each processing device (44) in the control device (4) or a common second parameter memory (40) is associated with a plurality of processing devices (44) in the control device (4).
6. Method for operating a power converter arrangement according to one of claims 1 to 5,
-storing first parameters in the respective first parameter memories (30) prior to regular operation of the power converter arrangement (1), and-transmitting the first parameters from the respective driver devices (3) to the control device (4) in order to initiate the regular operation, and wherein the operation mode of the power converter arrangement (1) depends on these first parameters.
7. The method of claim 6, wherein,
one of the first parameters is an identification parameter, and prior to initiating normal operation of the power converter arrangement (1), the respective identification parameter of each driver device (3) is compared in the processing device (44) with the applicable identification parameter stored in the second parameter memory (40), and operation of the power converter arrangement (1) is initiated only if all respective identification parameters correspond to the applicable identification parameters.
8. The method according to any one of claims 6 and 7,
one of the first parameters is an identification parameter, and during normal operation of the power converter arrangement (1), the respective identification parameter of each driver device (3) is compared in the processing device (44) with the applicable identification parameter stored in the second parameter memory (40) at regular intervals, in particular periodically, and operation of the power converter arrangement (1) is continued only if all the respective identification parameters correspond to the applicable identification parameters.
9. The method according to one of claims 6 and 7,
one of the first parameters is an excitation parameter, and prior to initiating normal operation of the power converter arrangement (1), the respective excitation parameter of each driver device (3) is stored as a second parameter in the second parameter memory, and normal operation of the power converter arrangement (1) is initiated based on the respective second parameter.
CN201910628252.1A 2018-07-26 2019-07-12 Power converter arrangement and method for operating such a power converter arrangement Pending CN110798049A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018118132.9A DE102018118132B4 (en) 2018-07-26 2018-07-26 Converter arrangement and method for operating such a converter arrangement
DE102018118132.9 2018-07-26

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CN110798049A true CN110798049A (en) 2020-02-14

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CN201910628252.1A Pending CN110798049A (en) 2018-07-26 2019-07-12 Power converter arrangement and method for operating such a power converter arrangement

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DE (1) DE102018118132B4 (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2893944A1 (en) * 2012-12-10 2014-06-19 Nec Corporation Power router, power network system, power router operation control method, and non-transitory computer readable medium having power router operation control program stored thereon

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DE102018118132B4 (en) 2020-02-13

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